It's one of the three chants on the Brahmaviharas that I know of, along with the Karaniya metta sutta and the basic formula from DN 13.I'll repeat it here just for fun as I'm sure everybody knows what I am talking about.

May I abide in well-being, in freedom from affliction, in freedom from hostility, in freedom from ill-will, in freedom from anxiety, and may I maintain well-being in myself.

May everyone abide in well-being, in freedom from hostility, in freedom from ill-will, in freedom from anxiety, and may they maintain well-being in themselves.

May all beings be released from all suffering.

And may they not be parted from the good fortune they have attained.

When they act upon intention, all beings are the owners of their action and inherit its results. Their future is born from such action, companion to such action, and its results will be their home. All actions with intention, be they skillful or harmful, of such acts they will be the heirs.

Where does it come from? Is it from a Sutta? Quick google search comes up with nothing.I ask because I am starting to use it in meditation. It's a good way to reflect on the Brahmaviharas. Also while this topic is up, are there any other similar chants/suttas I should know about?

"If beings knew, as I know, the results of giving & sharing, they would not eat without having given, nor would the stain of miserliness overcome their minds. Even if it were their last bite, their last mouthful, they would not eat without having shared." Iti 26

I think I heard a dhamma talk from Ajahn Thanissaro where he talks about American laughter when they realised a nun from Amaravati in the UK chanted "May everyone abide in well-being" instead of the more direct "may all beings be happy".

I wonder whether practitioners outside the UK are familiar with coyote's version? If not, it might originate in Amaravati.

As for the translation being particular to Amaravati - Abhiyagiri's version on their website is the same translation, though I don't know of it is their everyday version. It seems more likely it is a translation made by the Thai Forest Sangha, of which the two monasteries are branches. I like this flowery translation as it seems to have been translated specifically for chanting.

Metta

"If beings knew, as I know, the results of giving & sharing, they would not eat without having given, nor would the stain of miserliness overcome their minds. Even if it were their last bite, their last mouthful, they would not eat without having shared." Iti 26